Answer:
C(t)= D-(30Dt/100)
Explanation:
C(t)= 120-(30*120*1h)/100 C(t)=84
C(t)= 120-(30*120*2h)/100 C(t)=48
C(t)= 120-(30*120*3h)/100 C(t)=12
6.5m questions
8.6m answers